The effects of the histamine in water on the growth, development and endogenous histamine of Neomysis japonica (Crustacea,Mysidacea)
水体中组织胺对日本新糠虾生长、发育和体内组织胺含量的影响

Neomysis japonica were cultured from larval to maturity in different concentrations of histamine, including 0 mg/L (control group), 5 mg/L (low concentration group, L), 10 mg/L (middle concentration group, M) and 15 mg/L (high concentration group, H ), to explore the influence of histamine on the survival, growth, development and endogenous histamine of N.japonica. The body length, body weight and survival rate of Neomysis japonica decreased with the increase of histamine concentration; The body length and body weight of M and H were significantly lower than those of the control group(P<0.05; but L and the control group had no such significant differences; When the concentration of histamine in water came to 15 mg/L, the survival rate decreased significantly, the survival rate of H being only 53.92%±3.58%. In this study, histamine did not delay the appearance of sexual character, but delayed the maturation time in male. The maturation time of the control group was (25.71±0.76)d, and H (28.00±0.82)d, showing significant differences P<0.05); Histamine delayed the maturation time in female with the increase of histamine concentration, but only H was significantly different from the control group(P<0.05)with a delay of 3 days. We determined the concentration of endogenous histamine by HPLC, and found that the endogenous histamine levels of M and H (435.33 pg/g±56.94 pg/g and 478.67 pg/g±140.57 pg/g, respectively) were significantly higher than that of the control group(P<0.05).The results show that higher concentration of histamine in water restrain growth and development; the high concentration of endogenous histamine in the mysis may be an important factor.